Horizontal spindle drilling and boring machine.



No. 718,956. PATENTED JAN. 20, 1903. G. H. SMITH.

HORIZONTAL SPINDLE DRILLING AND BORING MACHINE.

APPLICATION FILED NOV. 7, 1901.

IO MODEL.

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UNTTEE STATES PATENT OFFICE.

GEORGE HENRY SMITH, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO THE BEAMAN& SMITH COMPANY, OF PROVIDENCE, RHODE ISLAND,

A CORPORATION.

HORIZONTAL SPINDLE DRILLING AND BORING MACHINE.

SPECIFICATION forming part of Letters Patent No. 718,956, dated January20, 1903.

Application filed November 7.1901- Serial No. 81,484- (No model.)

To all whom it may concern.-

Be it known that I, GEORGE HENRY SMITH,a citizen of the Unit-ed States,residing at Providence, in the county of Providence and State of RhodeIsland, have invented certain new and useful Improvements in HorizontalSpindle Drilling and Boring Machines; and I do declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in horizontal spindle drilling andboring machines; and it consists of the parts and combination of parts,as will be more fully hereinafter described and shown.

In the drawings, Figure 1 is atop plan view of the character referred toembodying my invention, parts being broken away. Fig. 2 is a sideelevation of the same, parts being broken away.

B is the bed of the machine.

K is a platform on which the operator stands, which is supported in suchmanner on the traveling head G as to be rigid and still be capable ofsliding vertically when the head is at or near its lowest position, aswill be hereinafter described.

The saddle E slides horizontally on the bed of the machine, and to thissaddle the main column or upright F is secured. The spindlehead G has avertical sliding movement on the column F.

H represents brackets attached to the spin dle-head G, each having yokeends, each yoke carrying two grooved guide-wheels M, journaled therein,between which the main supports I of the platform K are supported andguided as the platform moves.

The operator stands upon the platform K when operating the machine. Astop N, secured around the top of the supports I, rests on thesupporting-brackets H H and limits the downward movement of the supportsand the platform K. If, however, the head G is lowered to the saddle E,the platform K will not strike the bed B, as the projection L willstrike the saddle E and arrest the downward movement of the platform.The head G may continue to descend after the platform is at rest, as thesupports I will slide upward between the guide M, the wheels movingdownward on the supports until the head G is at its lowest position, thereverse action taking place on the upward movement of the head G, aswill be readily understood from Fig. 2.

Braces O extend from the outer end of the platform above the brackets H,the upper ends being secured to the top N. 0 isa guardrail securedaround the platform.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is

1. In a machine of the character described, the combination with the bedand platen, and the movable spindle-head, of a platform, supportsextending upwardly therefrom, brackets secured to the said head andguide-wheels secured in said brackets between which the said guideswork.

2. In a machine of the character described, the combination with the bedand movable spindle-head, of aplatform movablymounted on said head and aprojection extending from the platform adapted to engage said bed andarrest the downward movement of the platform.

In testimony whereof I aifix my signature in presence of two witnesses.

GEORGE HENRY SMITH.

Witnesses:

JOSEPH H. PEARCE, WALTER J. B. SMITH.

